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Uberpriifen der PLL-Freilauffrequenz
PLL Freerun Frequency Check
Vorgang:
Procedure:
1.
Frequenzzahler an IC 13 Pin 41 PLCK auf der Servopiatte
1.
Connect the frequency counter to Servo board test point PLCK
anschlieBen.
(IC 13 Pin 41).
2.
Uberpriifen, ob die Frequenz 4,3218 MHz + 20 kHz betragt.
2.
Confirm the frequency is 4,3218 MHz + 20 kHz.
[SERVO BOARD]
— Conductor Side —
Frequency
counter
Diagramme /
Waveforms
© 1C301 pin ©
2 Vp-p, 1 sec
@ 7P
0.2 Vidiv, 0.5 "sec
© 1c16 pin @
0.5 Vp-p, 50 & sec
1V, 1 #sec
@ IC16 pin @
0.1 mVp-p, 0.2 "sec
2 Vp-p, 5 Hsec
-
13 —
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